Whether you own a Bosch rotary hammer or another brand, it pays to watch this safety drilling technique video by Bosch UK's Training Development Manager, Eric Streuli, as he demonstrates the proper usage of a rotary hammer drill.

Streuli also addresses some of the misconceptions with jammed bits, such as when the drill bit gets caught in a rebar while drilling and explains in details the reactive torque that causes the tool to kick anti-clockwise around the jammed bit.

While you're at it, don't forget about your safety kit!